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Finding the Fourth Proportional to 400,544.86, 600,402.08 and 250,440.45

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Solution

The fourth proportional to 400,544.86, 600,402.08 and 250,440.45 is: 375,401.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,544.86 : 600,402.08 = 250,440.45 : x
  2. Step 2: Convert to fraction form
    400,544.86/600,402.08 = 250,440.45/x
  3. Step 3: Cross multiply
    400,544.86x = 600,402.08 × 250,440.45
  4. Step 4: Simplify right side
    400,544.86x = 150,364,965,843.93
  5. Step 5: Solve for x
    x = 150,364,965,843.93/400,544.86
  6. Step 6: Final answer
    x = 375,401.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.